It almost looks like if you stall you automatically have a spin on your hands as well. I'm curious as to the average typical altitude loss in the stall before its in a recovered condition.... Obviously the moral of the story is don't stall.
Worth mentioning that this aircraft has a stick pusher system as well that they bypassed for these tests. Assuming the pusher was working and not bypassed, this airplane won't let you stall it. Looks like it recovers from spins just fine, anyway.
Trying to hold the wings level with heavy aileron is not the best thing for the wingtip AoA.... that's definitely the reason. Looks like they're using aileron on purpose. Maybe the screwed up method of stall stabilization is what's required during testing to sell the plane to the general public
These tests are to measure slow flight and stall performance with the aircraft "dirty" -- landing gear extended and flaps deployed, as if it were on approach to land. Many stall/spin accidents occur during the landing phase, often when turning to line up with the runway.
It just goes to show even a modicum of aerobatic training is vital for all pilots. There have been a few accidents where this has happened to pilot/owner PC12s. I would make sure I learnt all the characteristics of the aircraft before going solo.
I was a mechanic on these for 10 years. Every 100 hr inspection these systems were tested. In power on and off. In ice mode too. Then a bit of calibration after replacing an AOA vane, usually due to the heater not working.
Hit a severe down draft once while departing from Innsbruck during Foehn conditions at approximately 1000agl (departing rwy 08). During the shear the flaps already up, and the speed initially jumped from 125 to 160 and then a loud bang and the aircraft stall shaker activated with the speed below 90ks instantly. Naturally followed the control column forward. You could feel the zero g and wings unload. Maybe lost 100 to 200 feet. Probably felt like a rollercoaster for the pax in the back. Co pilot told me his "ass is sweating" we reported severe windshear hugged the ridge to the north to escape any further down drafts. A320 departed 20min before us with no comment. Foehn was also not reported in the ATIS. Wind on the ground wasnt anything extra but after reviewing the AIP the ground wind direction and speed was conducive to Foehn almost text book. Outlined very well in AIP. Read the LOWI AIP! It's a funny airport!
Why does it roll when it stalls? What I see in the video is a severe unusual attitude (>90 degrees in roll) when it stalls...every time (in the video at least). I would say getting into a stall in this aircraft is very dangerous if you can't hold wings level in a stall.
Anyone else here because pilot to pilot podcast or just me?
It almost looks like if you stall you automatically have a spin on your hands as well. I'm curious as to the average typical altitude loss in the stall before its in a recovered condition.... Obviously the moral of the story is don't stall.
Worth mentioning that this aircraft has a stick pusher system as well that they bypassed for these tests. Assuming the pusher was working and not bypassed, this airplane won't let you stall it. Looks like it recovers from spins just fine, anyway.
They are relatively docile aircraft within their normal operating envelope. These tests are deliberately outside that envelope.
Trying to hold the wings level with heavy aileron is not the best thing for the wingtip AoA.... that's definitely the reason. Looks like they're using aileron on purpose. Maybe the screwed up method of stall stabilization is what's required during testing to sell the plane to the general public
Ngl that's a terrifying stall behavior
These tests are to measure slow flight and stall performance with the aircraft "dirty" -- landing gear extended and flaps deployed, as if it were on approach to land. Many stall/spin accidents occur during the landing phase, often when turning to line up with the runway.
Pc12 has some pretty nasty stall characteristics
It just goes to show even a modicum of aerobatic training is vital for all pilots. There have been a few accidents where this has happened to pilot/owner PC12s. I would make sure I learnt all the characteristics of the aircraft before going solo.
Wow, recovered in 900 ft, that's pretty good for a plane that big, although that didn't look like a fully developed spin it's Still better than some.
I was a mechanic on these for 10 years. Every 100 hr inspection these systems were tested. In power on and off. In ice mode too. Then a bit of calibration after replacing an AOA vane, usually due to the heater not working.
Hit a severe down draft once while departing from Innsbruck during Foehn conditions at approximately 1000agl (departing rwy 08). During the shear the flaps already up, and the speed initially jumped from 125 to 160 and then a loud bang and the aircraft stall shaker activated with the speed below 90ks instantly. Naturally followed the control column forward. You could feel the zero g and wings unload. Maybe lost 100 to 200 feet. Probably felt like a rollercoaster for the pax in the back. Co pilot told me his "ass is sweating" we reported severe windshear hugged the ridge to the north to escape any further down drafts. A320 departed 20min before us with no comment. Foehn was also not reported in the ATIS. Wind on the ground wasnt anything extra but after reviewing the AIP the ground wind direction and speed was conducive to Foehn almost text book. Outlined very well in AIP. Read the LOWI AIP! It's a funny airport!
2:25
Interesting thanks for posting.
Hey. wonderful plane ah?? Nice vid. Grettings from Vzla!
does it have a rudder?
good stuff guys
Way above my skill set
I’m guessing this is what happened to Dana at Hobby except she was at much lower altitude.
Why does it roll when it stalls? What I see in the video is a severe unusual attitude (>90 degrees in roll) when it stalls...every time (in the video at least). I would say getting into a stall in this aircraft is very dangerous if you can't hold wings level in a stall.